Abstract: A monolithic multi-layer capacitor is disclosed having a central capacitively active area and two electrode joining sections separated from the active area by sloped sections. The dielectric layers are about 1 micron thick in the active area and taper gradually to zero thickness in the sloped sections. Electrode layers in the active area have a thickness in the range from 200 to 500 Angstroms and sufficient thickness throughout the sloped sections for adequate current carrying capacity. Various acrylates are used for the dielectric layers, the number of layers ranging from a few to many thousands.Apparatus and methods are disclosed for the fabrication of such capacitors on a high speed, production scale basis. Such employ techniques for the flash evaporation of highly reactive monomers of acrylate dielectric materials so as to form a gaseous stream of such materials.

Abstract: A method for continuously supplying a uniform vapor of a polymerizable and/or cross-linkable material. A continuous liquid flow of said material is supplied at a temperature below both the decomposition temperature and the polymerization temperature of said material and atomized into a continuous flow of liquid droplets having a particle size from about 1 to about 50 microns. The droplets are continuously vaporized upon contact with a heated surface which is maintained at a temperature at or above the boiling point for said material, but below the temperature at which said droplets would undergo pyrolysis before vaporizing. The vapor may be deposited onto a substrate and subsequently polymerized or cross-linked.

Abstract: A high-speed process for coating substrates with thin organic coatings in a vacuum is disclosed and claimed. The process utilizes relatively low boiling, reactive monomers (e.g., polyacrylates) which are flash vaporized, condensed on the substrates and cured, in situ. The resultant cured films are pin-hole free and exhibit excellent adhesion. The process is capable of being run at very high coating and curing speeds, e.g., between 1 and 1000 cm/second.

Abstract: A high stress corrosion resistant metallized capacitor is disclosed having at least one electrode consisting of a metallic bilayer vapor deposited on a dielectric strip. In a preferred embodiment, a layer of aluminum is covered by a second metal layer which is between about 1/6 to 1/12 the thickness of the aluminum layer and is continuous throughout. The aluminum layer extends beyond the second layer in a marginal area.

Abstract: A roll section for an electrical capacitor comprises a wound composite of alternate strips of polypropylene and aluminum foil with narrow bands of a dielectric coating along the longitudinal edges of the aluminum strips. The coated edges may also be folded for optimum results.